The present invention relates to new compounds of formula (I), wherein R1, R2, R3, R4, R5, R6, R7, and R8 independently from each other are hydrogen C1-C18alkyl C2-C18alkenyl C5-C7, cycloalkyl C1-C6alkylene-C5-C7, cycloalkyl R9 is hydrogen C1-C18alkyl C2-C18alkenyl C5-C7cycloalkyl C1-C6alkylene-C5-C7cycloalkyl C6-C10aryl A is —S— —O— or —NR10—, wherein R10 has the same meanings as R9 X is COOR11 CONR12R13 SO3, R14 or SO2NR15R16, wherein R11, R12, R13, R14, R15, and R16, have independently from each other the same meanings as R9 to their preparation and to their use as UV absorbers in cosmetic and pharmaceutical formulations.
